Ydes   France

Marcello Mazzilli
Law Firm
+33 (0)4 72 20 12 12
+33 (0)4 72 20 12 13
12 Cours Albert 1er
Paris, 75008 France
Faye Tadros

About Ydes

Founded in 1945, previously known under the names Office Juridique Français International (OJFI), Alexen, OJFI Alister & Lyon Juriste, the law firm Ydès advises and assists companies and their directors in the key areas of business law.


Ydès encompasses a team of around one hundred lawyers and associates, covering a broad spectrum of disciplines, based in Paris, Lyon, Avignon, Bourg-en-Bresse, London and Brussels, all sharing the same values of attention, commitment and professionalism.

The firm works in France and abroad, on behalf of small and medium-sized businesses and also for industrial groups and services, as well as for Funds within the context of their investments.

The development of a perennial partnership with their clients, the creation of customised solutions and the advanced level of expertise of their services are, for Ydès lawyers, the grounds of a trustworthy relationship, guaranteeing performance and success.

Ydès teams are top-rated in France by IFLR1000 and Legal 500 in Mergers-Acquisitions and Private Equity as well as by the journal Décideurs in Mid-cap Mergers-Acquisitions (transactions ranging between 75m€ and 500m€), Capital-risk, Capital development, Trademarks, designs and models, IT, Internet and Personal Data.

marcelo_mazzilli_0.jpgMarcelo Mazzilli

Business law

Areas of expertise

Marcelo Mazzilli is involved in mergers and acquisitions, restructuring, private equity as well as national and transnational joint ventures and advises French as well as international companies in their acquisitions and national and cross-border restructuring.

He also assists institutional investors in private equity transactions and advises entrepreneurs and managers in the implementation of their management-package.

Trilingual in French, English and Portuguese, he is the main contact for French economic players operating internationally or wishing to establish themselves as well as for foreign economic actors investing in France.

Professional experience

Marcelo Mazzilli first worked in the M & A and Private Equity department of Delsol law firm as an associate lawyer, then in Fidal law firm’s M&A and Private Equity department as a partner.

Marcelo Mazzilli joined Ydès as a partner in May 2016.

Educational background

Admitted to the French (Lyon) and the Brazilian (Minas Gerais) Bars, Marcelo Mazzilli holds a Master Degree in Law in Business Law (University Paris IX - Dauphine) and graduated from EM Lyon Business School (MSc in Management).


Marcelo Mazzilli has also developed a particular expertise in assisting international pharmaceutical groups establishing in France as well as French and foreign Biotech, Medtech and New Technology start-ups.


faye_tadros_fisch_0.jpgFaye Tadros

Business litigation

Areas of Expertise

Faye Tadros Fisch assistsYdès clients at the pre-litigation and litigation stages in commercial law, contract law and real estate law, and represents the interests of several foreign groups in the context of international arbitrations. She is able to practice fluently both in French and in English.

With extensive experience in the real estate department of a leading British consulting group in corporate real estate, she participates in commercial leases, professional leases and residential leases, as well as in co-ownership law and construction law, in both legal advice and litigation.

Professional experience

After having begun her career in the real estate and co-ownership department with Knight Frank in Paris - department which she managed in 2002-2003 -,
Faye Tadros Fisch joined the firm Ydès in 2004 and became a partner in 2013, after a successful phase as a sole practitioner.

Educational background

Admitted to the Paris Bar, ranked in the top ten of her promotion, she graduated top of her class with a specialised master degree (Master 2) in national and international litigation from Paris V University (Descartes) and a master degree (Master 1) in substantive public law from Paris I University (Panthéon La Sorbonne).


Faye Tadros Fisch has been lecturing in professional ethics to students at Paris II University (Panthéon Assas) since 2009.

She also participated, in 2008, in the drafting of a collective book entitled “La Clause de l’Européenne la plus favorisée” published with the editor Editions des Femmes, under the supervision of Gisèle Halimi, as well as in the organisation and management of an international seminar on this topic, in the context of the French Presidency of the European Union.